Baling press



Nov. 4,I 1930. G. w. LANGFORD 1,780,528

BALING PRESS Filed april 5, 192s s shams-sheetV 1 5 Sheets--SheeiA BALING PRESS G. W. LANGFORD Filed April 5, l1923 Nov. 4, 1930.

@tbox/nuto s sheets-smet, s

.LANQFORD BALING PRESS l Filed April 5, 1923? Nov. 4, 1930.

G6076 lcvyford speedsr and the prime mover yfor operating thek Patented Nov. 4, 1930 renf sV i GEEGWJLANGFoRD; or simuleren Mroii'isziiv,

y BALING runes '1 Application filed April 5,

plunger is cut out when the plunger reaches either "end ojfr its stroke., b y l 4 r; lnba'lingpresses as heretofore constructed it has been necessary to drive the plunger at 310 a relatively slow speedto secure the idesired power for compression, which naturally slows up4 the Work. lThe Vpresent invention has among its objects the 'provision of a construction in whichy they plunger jhas a rate ofspee'dk .during the latter portion ofits corni lpressing movement which isv lower than the rate of speed'during-.the firstrportion of.` its compressiiig` movement, the rate'of speed de- -pendingupon tlieiresistanceofered by the compressed material. i Thefinventionalso re,-

sides in the provision, of van automatic rdevice for shifting the. drive mechanism Vfrom high speedto lownspeedg'in the provision of an automatic cut-out device for shutting off the power the instanta certain predetermined pressure is exertedl on thel compressed mate' rial;A inthe provision ofan automatic` cut-out arrangement for shutting olf the power when theplunger is at the outerlimitfof'its stroke;

in the novel features of construction and Vcornbinations and arrangements of parts as more fully hereinafter set forth.

lnthe drawings:

Figurekl is] an ,end ele [Nation of a baling PIGSSS'embpdyingIny invention; Y 4 u o Figure-2 is a side elevation of a portion thereof;` s

lligurel 3 4is' la plan control mechanism thereof.

yDescribing i'irst iiil detail the general arran'gei'i'ient of the baling pregss,1 is the bal-v ing cli'ainbermounted on the `base`2 and having an open upper end through Iwhich thematerial to be compressedL can'be fed. 3 isa plunge'rreciprocable vertically within the b'al'ing chamber for compressingthe material therein andis actuated by the chains, 4 secured to the opposite ends of the'plunger. The chains 4 extend over theupper sprocket wheels 5 and the lower sprocket` wheels 6 view. V ofv the drive and 1923. serial No. 630,078. i"

locatedy atV opposrte ends ofthe frame for the balingjchamber. rlhe flower sprocket wheels @are each driven from a-gear `Wheel-7V rotatably-fmeunted.on the stub shaft-8 lcarried upoiitlie basel and meshing with a, pinion 9 securedupon the shaft extending longitudinally of the baseand journalle'd therein.

'l`he construction is such that with the parts as shown iii Figure l and when the gear wheels l' are driven in a counter-clockwise` directioznthe plunger S/willbe first rocked down onto the `top ofthe material in the baling kchamber l and lthen vertically Amoved downwardso as to lcompress the material in the chamberto a predetermined density.

Since/theinaterialy is naturally fluffy and. easily compressed during the rfirst portion' ofy the downward movement of the plunger7` have provided a` novel drive mechanism vwhereby the plunger during thistime ismoved downwardly ata relatively high rate of speed. VVh'en, however, the density ofthe ymaterial. is` such as to .produce a predetermined resistance-to the downward movement of the plunger the drive mechanism is shift ed so that duringthe remaining downward movement of the plunger its rate of speed islower, whereby with the same power 4the pressure exerted upon the material can be increased.. lVhen the material reaches a still further predetermined density themotoror other prime mover is cut outy and tne plunger is locked inits final positionso that'the compressed material can be tied if desired,"after which the drivemechanism is reversed and thegear wheels 7 are rotated in a clockwise direction to return .the plunger 3 upwardly to its'open position. f y u..

Describing now indetail kthe drivemechanisni, ll is the worm kwheel secured upon one end 0f the shaft l0 anddriven fronjrthe worm l2 secured upon the driven shaft 13 extending transversely of and journalled in the vbase. 2. l14 is a drive shaft extending parallel to the driven shaft 13 and also journailed in the base 2. f l5 and 16 arelrespectively asmall gearand a largey gear secured upon the driven shaft 13, and 17k andlS are respectivelyfaflarge gear and a small gear rotatably mounted upon the drive shaft 14 with corresponding jaws upon the sides ofl vthe gears.

The arrangement is suchthat when the collar 19 is shifted longitudinally upon the ldrive shaft into driving relation with the gear 17, the latter will drive the gear 15 which in turn drives the driven shaft 13, the worm 12thereon and the worm wheel 11 meshing with the worm, this worm wheel in turn driving the shaft 10 and theA small sprocket wheels 6 through the gear wheelsV I and pinions 9. llhen the collar 19 is shifted in the opposite direction in driving relation with the gear 18, this gear drives the small sprocket wheels through the gear 16 and the driving elements intermediate the small sprocket wheels and this gear. When the driving is effected through the pair of gears 15 and 17 the small sprocket wheels are rotated at a higher rate of speed than when the driving is 4effected through the pair of gears 16 and 18.

21 is a hand lever extending upwardly above the frame for the drive mechanism and pivotally mounted at 23 upon the cross bar 22 extending between the side sills of the base 2, the lower end of this hand lever hav- 'ing a fork engaging the collar 19 for shifting the same longitudinally `of the drive shaft.

` The drive shaft 14; is driven from the electric motor 24 by suitable means such as the chain 25 upon suitable sprocket wheels upon the drive shaft and the motor shaft.

With the arrangement as thus far described and with the plunger 3 in its open position, the nrst portion of the downward movement of the plunger 3 can be effected at a relatively high rate of speed by shifting the hand lever 21 to the right to bring the collar 19 into driving relation with the gear 17. Then when the material within the baling chamber reaches a certain degree of compression andconsequently offers a certain resistance tothe further downward movement of the plunger, the hand lever can be vshifted to the left to disengage the collar from driving relation with the high speed driving gear and into driving engagement with the low speed driving gear 18', after which further downward movement of the 'plunger is e'ected at lower rate. of speed.

For automatically shifting from high speed to low speed in accordance with the density of the material being compressed or in accordance with the resistance offered by this material, l have provided the following construetion: 26 is an upwardly extending lever pivoted at 27 upon a side sill of the base and having a bearing 28 located slightly above the pivot 27 for engagement by the adjacent end of the driven shaft 13, which is movable longitudinally in its bearings by the reactive effort of the teeth of the worm wheel 11 meshing with. the teeth of the worm 12 secured upon this driven'shaft, the degree of reactive effort being dependent upon the degree of compression of the material in the baling chamber. 29 is an actuating rod extending transversely of the frame of the gear mechanism and longitudinally slidable therein, this rod being connected to the plate 26 secured to the upper end ofthe lever 26, whereby as the driven shaft 14 is moved longitudinally to the 'right in Figure 1 and the lever 26 is swung in a clockwise direction, the actuating rod 29 will also be moved to the right. VThis rod is provid-ed with suitable nuts 30 adjustably threadedly engaging the rod and located on opposite sides of one end of the lever 31 pivotally mounted at 32 upon a cross bar 33 of the gear mechanism frame; The other end of the lever 31 is located on the right side of the hand lever 21 (referring to Figure 1), whereby the lever 31Y upon being swung by the actuating rod in a counter-clockwise direction will swing the hand lever to disengage the collar 19 from the high speed gear 17 to the low speed gear 18. 30 are coil springs surrounding the actuating rod and abutting the nuts 30 and the opposite sides of the end ofthe lever 31 therebetween, these springs having suh'icient strength. to swing the lever 31 to chan'e speeds upon the longitudinalv movement of the actuating rod a predetermined distance but allowing subsequent further longitudinal movement thereof. 34 is a coil spring surrounding the actuating rod 29 and abutting the side bar 35 of the gear mechanism frame and the nut 36 adj ustably threadledly engaging the actu ating rod, this coil spring offering a predetermined resistance to the longitudinal movement of the actuating rod and thereby determining the time of shifting the drive mechanism from high speed to low speed. By adjusting the nut 36 upon the actuating rod, compression of the coil spring can be varied to vary the time of shifting.

, For the purpose of cutting out the motor when the material within the bailing chamber has reached a final predetermined compression, 1 have provided means for actuating a suitable electric switch .mechanism 37 from the actuating rod 29 when the latter has moved a predetermined distance to the right in Figure 1, this distance being greater than that for shifting from high speed to low speed and this additional movement of the actuating rod being allowed by reason' of the coil springs 30. As shown, this means comprises the horizontal lever 38 pivotally mounted upon the cross bar 30v of the gear mechanism frame and connected to the actuating rod 29 dat one end and tothe switch lever39 at the other end. This switch lever is also connected to ther hand lever 40 pivotally mounted at its lowerend upon the gear mechanism frame and adapted to initially electrically connect the motor 24 to drive the plunger 8 in a downward direction. V

' Owing to the Jfact that the drive mechanism yincludes ain-irreversible worm driving element, the plunger is automatically held in its iinalk downward position to kpermitxof tying i thecompressed material, if desired.

41 is a suitable electric switch having the switch lever 42 connected tothe handV ylever 43, which latter is pivotally mounted at its lower end upon the gear mechanism iframe.

-. rlfhis switch when closed electrically connects the motor 24 to drivethe plunger 3 in an upward direction."l F or cuttingout the motor when the plunger has reached its-uppermost or open position, there is the pull rod 44 pivotally connected at itsv upper end tothe wheel y 45 and at its lower end to the crank 46 journalled in the gear mechanism frame and havto swing the same ythereby breaking the electric circuit. Y The wheel is turned during the Final opening movement of. the plunger by suitable means, such as an end of the plungand worm, a worm wheel meshing with said rod and the opposite end arranged to con- Y worm and operatively connected to said plunger, a member adapted t0 be, actuated by longitudinal movement of said worm, an actuating rod connected tofsaid member, a lever having one end engaging the actuating trol the change speed gearing, and springs upon said actuating rod engageable withl said lever and operable upon a longitudinal movement Vof the worm to control said change speed gearing. l

y2. A driving means for baling presses having abaling chamber and a plunger movable therein, including a motor, a worm, change speed gearing between said motor and worin, a worm wheel meshing with said worm and operatively connected to` said plunger, a longitudinal movable actuating rod adapted'to be actuated by longitudinal movement of said worm, alever operable upon a movement of said rod to shift the change speed gearing, and means for determining the time ofshifting the change speed gearing including a spring surrounding said rod and oi'ering a predetermined resistance to the longitudinal movement of the actuating rod.

3. A driving means for baling presses having an arm 47 engageable with the hand leverv for? operating thefplungei-"-duri'ig thellrst portion of its movement in the same 'direc-4 tion at a lower rate of speed;

4. A driving'means for baling presses having a baling chamber able therein,

g u anda plunger mov u including power driven means :tor operating the plunger to compress the material within the baling .chamber at different rates of speed *automatically responsive to the resistance offered by the material being compressed. l

5. A driving means for balingpresseshav-y 'i ing a baling chamber and a plunger movable therein including power driven means for operating the plunger during the rst portion of its compressingV movement at a relatively high rate of speed and operating the plunger during Va succeeding portion of itsv'` movement at a slow rate of'speed and means.. i'or automatically shifting from one speed to' thev other dependent upon the pressure exerted by the plunger'upon'the material being compressed.

6. A driving means for baling presses hav-` ing a` baling chamber and a plunger therein,

yincluding an electric motor, a worm, change speed gearing between said motor and worm, a worm wheel meshing with said worm yand electric motor for cutting out said motor in one. eXtreme/position of the plunger, anda common means dependent upon the longitudinal movement of the worm for controlling .Y

the said change speed gearing and switch.

7. A driving means for baling presses having a baling chamber and a plunger movable therein, including a motor, a worm,

change speed gearing between said motor and worm, a worm wheel meshing with said worm -and operatively connected to said plunger, a lever adapted to be actuated by longitudinal movement of said worm, and an actuating rod connected to said lever and controlling said change speed gearing and switch. "f 8. A driving means for baling presses having a baling chamber and a plunger movlsioo operatively connected to said-plunger, an

able therein including power driven mechay nism, for operating the plunger during the iirst portion of its compressingmovement at a relatively high rate of speed and for operating the plunger during a succeeding portion oi its movement at a comparatively slow rate of speed, and `means dependent upon the pressure exerted bythe plunger upon the material being'compressed for automatically changing from one speed to the other, said means also Operable When'the plunger exerts a predetermined pressure upon the material to automatically discontinue the operation of said power driven mechanism to stop further movement of the plunger.

Intestimony whereof I. aiX my signature.

GEORGE W. LANGFORD. 

